Cocktail geeks everywhere will be green with envy when they hear that you were one of the lucky few to belly up to the Sanderson's Purple Bar. The ultra-exclusive watering hole, open only to guests and members, has quickly become one of London's hottest gathering places. Why? Well, its location in Ian Schrager and Philippe Starck's ultra hip luxury hotel Sanderson certainly doesn't hurt. And its super-chic cocktail list is based on the original Martinez (precursor to the modern martini) that was first shaken and stirred by legendary bartender "Professor" Jerry Thomas back in 1860. So check in, and belly up for the best cocktail of your life.